Google

Type: organization / search engine | Domain relevance: The ranking authority the entire SEO pillar optimizes for; also a web-dev standards driver (Core Web Vitals, Chrome).

Summary

Google is the search engine whose local algorithm (Local Ranking Factors (Relevance, Proximity, Prominence/Authority): proximity, relevance, prominence) and entity model define the corpus’s SEO strategy. Two facts recur: Google invented the transformer architecture in 2017 (the “T” in ChatGPT), and around 2018 shifted ranking from keyword to entity matching. Its surfaces — the map pack, Google Business Profile, organic results, and AI Overviews — are the targets; its AI assistant is Gemini. Google’s link-based quality signal traces to Brin & Page’s 1999 PageRank, and after 2023’s AI-content flood it leans harder on links to filter quality (Local Link Building & Authority). It also renders pages on mobile Chrome to judge quality.

Key Facts

• Transformer (2017) and entity-based ranking (~2018) are foundational to Entity-Based SEO.
• Local surfaces: map pack (60–70% of clicks), GBP, organic, AI Overviews; assistant = Gemini.
• PageRank (1999, Brin & Page) underlies link authority; post-2023 links filter AI content.
• Renders on mobile Chrome; rewards helpful, formatted content over “AI slop.”
• Its own AI reads the same consistency signals as classic ranking (GEO / AEO (Getting Recommended by AI)).

In the Sources

Related

Entities: Google Business Profile, Gemini, ChatGPT, Claude, Perplexity Concepts: Local Ranking Factors (Relevance, Proximity, Prominence/Authority), Entity-Based SEO, GBP–Website Alignment (Consistency Signals), Local Link Building & Authority, GEO / AEO (Getting Recommended by AI), Schema Markup (Structured Data)